Emergence and Re-Emergence of Infectious Diseases: Perpetual Threat to Public Health World Wide

Abstract

Now-a-days emerging and re-emerging infections worldwide are becoming the utmost problem for the development of mankind. Many different infections are considered to be zoonotic for humans (transferred from animals to humans). Emerging infections are those which are completely new contagion and affected new geographical locations. Infections are thought to be re-emerging that were important health problem globally or in a specific region, then diminished and once again appear and become the health issues for vast number of population. Although, zoonotic infective agents are most probably thought to be the cause of emergence and re-emergence of communicable diseases.